| form-fit-function subset (SCM-APO-MD) |
Is a subset of a Form-Fit-Function (FFF) class. In contrast to the superior FFF class, it is location-specific. All the products in the subset have to be contained in the class, but not vice-versa.
Each FFF subset has one leading product. All requirements for the members of the subset are automatically passed to the leading product. This means that only the leading product is procured or produced. Stock for the other products in the subset can be used to satisfy requirements.